void UpdateKey()
{
UpdateSliderControls(this);
object pFrameRes, pFrameBG;
m_pKey.KeyFrameGet(out pFrameRes, out pFrameBG);
if (pFrameBG != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(pFrameBG);
}
if (pFrameRes != null)
{
UpdatePicture(pFrameRes);
}
}